Home / 20,250.46-30,391.28-13,228.57

Finding the Fourth Proportional to 20,250.46, 30,391.28 and 13,228.57

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Solution

The fourth proportional to 20,250.46, 30,391.28 and 13,228.57 is: 19,853.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.46 : 30,391.28 = 13,228.57 : x
  2. Step 2: Convert to fraction form
    20,250.46/30,391.28 = 13,228.57/x
  3. Step 3: Cross multiply
    20,250.46x = 30,391.28 × 13,228.57
  4. Step 4: Simplify right side
    20,250.46x = 402,033,174.87
  5. Step 5: Solve for x
    x = 402,033,174.87/20,250.46
  6. Step 6: Final answer
    x = 19,853.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.